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EWG's Tap Water Database — 2021 UPDATE

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Trichlorofluoromethane

Morris Chase/morris Hunt Pcws

Trichlorofluoromethane (Freon 11) is a refrigerant, solvent and aerosol propellant banned in 2000 under the Montreal Protocol because of its ozone-depleting properties. Freons can cause heart, nervous system and liver damage.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND30ND
2017ND40ND
2018ND40ND
2019ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1,300 ppb

The EWG Health Guideline of 1,300 ppb for trichlorofluoromethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

ppb = parts per billion

All test results

Date Lab ID Result
2016-06-14360614177ND
2016-08-17360817122ND
2016-10-27361027101ND
2017-03-22370322081ND
2017-05-24370524111ND
2017-07-25370725099ND
2017-11-08371108148ND
2018-03-20380320182ND
2018-06-13380613162ND
2018-07-18380718186ND
2018-10-16381016237ND
2019-01-15390115196ND
2019-04-16390417218ND
2019-07-25390725041ND
2019-10-16391016246ND